Home Alarm System2.4G WiFi PIR Motion Sensor Alarm, Wireless DIY Smart Door/Window Alarm for Home Security with Phone APP Alert 4-Piece Kit2Door Window Sensorfor House Apartment Office,Black

Smart Home Alarm System A smart way to protect your house with LUCKYDEER Smart Home Security System. 3-piece kit includes the 1 motion sensor alarm siren, 2 windows & door sensors and 1 remote controls. (You can add up to 24 door/window sensors and 10 remotes to the central alarm host.)
24 Hours Protect Your Home's SecurityThe LUCKYDEER Wi-Fi Smart Home Security System doubles as a motion detector and an alarm. When the door/window sensors get removed from each other or when the hub detects motion, the alarm hub emits 120-decibel alarm and simultaneously sending push notifications to your smartphone.
Multi-Function&DIY InstallationThis indoor motion sensor alarm has two modes, Doorbell mode and Alarm mode. The remote integrated panic button, when you press the button of "SOS", the host will alarm immediately. The alarm station should ALWAYS CONNECT to AC adapter via the cable in the package. The backup batteries of the alarm hub works for 8 hours, only as an emergency battery.
If No Wifi - If a power or wifi outage occurs, your alarm will continue to function for up to 8 hours on backup battery power, emitting a 120dB alarm to deter intruders when it detects motion or when the door or window is opened.(No app alerts without wifi)The alarm kit can also be installed in places where there is no WiFi and can only be switched on and off with the remote control, not connected to the APP.
No Monthly Fees - LUCKYDEER WiFi Alarm System is a one-time purchase at no extra fee. Arm and disarm your alarm system by the remotes or directly from your phone via the Smart Life App.No contracts and No subscription fee. The burglar security alarm system is suitable for sheds,garage,barn,shop,yard shed,single story apartment or home,cabin,motorhome,chicken coop,any small room you want to protect